Trough or tank water level valve



4July ze, 1949. l

s. c. WRIGHT THOUGH OR TANK WATER LEVEL VALVE Filed Jan. 2, 1948 JNVENTOR.

Patented July 26, 1949 UNITED'v STATES `RATENT. OFFICE -v Y n 2,477,22iY 'rRoUGH oa TANK WATER LEVEL VALVE j Smith C. Wright, Bandera, Tex.Application January 2, 1948, Serial No. 336

The present invention relates to improvements in trough or tank waterlevel valve for regulating the flow of water into stock -wateringtroughs, water closets, commode tanks and the like.

Heretofore, the float actuated valves employed in the above devices havebeen of the type in which the float operated indirectly upon the valvethrough linkage or float arms. -Such previous structures have been proneto break or become disallgned in the normal service for which they wereintended resulting in the loss of use of the device with its attendantinconvenience and cost of repair,

It is one i the objects of the present invention to eliminate thedisadvantages of the prior devices by providing an improved water levelmaintainer in which the iioat comes into direct icontact vwith the valvestem to urge the valve to its open position to permit the flow of thewater to the container.

Another object' of the present invention is to provide an improved waterlevel maintainer which is instantly responsive to changes in the waterlevel in the container so that there is a minimum of delay in theopening and closing movements of the valve.

The present invention yaims to provide an improved device of this typewhich as a unit may be quickly and easily attached to or detached from astandard water supply pipe.

A further aim of the present invention is to provide an improved deviceof this character which' is simple in -construction and operation and iseconomical to manufacture and in which the cost of maintenance isnegligible.

A still further object of the present invention is to provide animproved water level maintainer -which is self-contained, the operatingparts of which are covered and thus protected :against the entrance offoreign matter and against damage by the animals drinking from thetrough.

Another aim of the present invention is to provide an improved waterlevel maintainer in which the water in the tank is prevented fromsiphoning .back into the w-ater line. This is of great advantage whenthe improved :device is used in connection with water closets, commodesand the like.

With the foregoing and other objects in view, the invention will be morefully described hereinafter and will be more particularly pointed out inthe claims appended hereto.

In the drawings, wherein like symbols refer to like or correspondingparts throughout the several views,

4 claims.' (ci. 137-104) Figure 1 is a vertical sectional view oi theimproved valve shown as applied to an animal watering trough with part-sbroken away and parts shown in section; y

Figure 2 is ka transverse sectional view taken on the line 2--2 ofFigure 1;

Figure 3 is a fragmentary verticals-ectional view of lthe improved valveshowing the valve inits openposition; Y Y

Figure 4 is a fragmentary 'vertical sectional view of .a modiledform ofthe improved valve.

Referring more particularly to the drawings, I designar/es a waterorother liquid tank which, in the form of the invention shown in Figuresl to 3, is a drinking water trough for livestock or other domesticanimals. The tank or trough I0 has a bottom II which is provided with avertically extending through passageway I2. A stand-pipe I 3 is receivedby the passageway I2 and its lower end extends below and outwardly ofthe -bottom II of the tank andis connected `by an elbow fitting I4 to awater supply main I5.

The upper end of the pipe I3 is externally screw threaded as at I6. y Anadapter I'I annular in cross section has a centrally disposed through.bore IBhaving internal screw threads I9 which engage thethreads I6 onthe pipe I3 for.r detachably mounting the adapter on the pipe I3. Theadapter has yan upstanding peripheral annular flange 20. therebyproviding a socket 2l having a bottom22 for receiving a plug 23 which isvround in cross section. The plug 23, which is received by the socket2|, seats upon the bottom 22 of the socket; and its side wall has Vasnug fit with the interior wall ofthe flange 2i).V The plug is securedto the adapter by welding or the like as indicated at 24 to :provide awater-tight joint between the plug andthe adapter. A centrally disposedopening 25 of less diameter than the Ybore I8 of the adapter and thepipe I 3 eX- tends through the plug 23 and communicateswith the pipe I3.

A vertically extending tube 25, open at both ends, has its lower endwelded as at 2l to the upper face of the plug 23 in registry with theopening 25 in the plug to 'provide a water-tight joint between theplugand tube. The upper end of the tube 26 is internally screw threadedat 28 to stem. VThe upper vendof the valve cage extends to be attachedto a water supply main comprising an adapter having means for removablyconnecting the same to the main as a support and having an upstandingflange at its outer margin providing an internal socket having a bottomwall, a plug seated on said bottom wall and aiiixed in said socket, saidplug having an opening therethrough smaller in diameter than that of thewater main, a small vertical tube having an internal diametersubstantially equal to that of said plug opening carried by andupstanding from said plug and in communication with the opening, a valvecore carried by the upper portion of said small vertical tube, a largevertical tube of substantially greater diameter than said small verticaltube surrounding the same and having openings for the escape of watertherefrom, a coupling for connecting the lower portion of said largevertical tube to said adapter, a float movably mounted. for

REFERENCES CITED The following references are of record in the 111e ofthis patent:

UNITED STATES PATENTS Number Name Date 1,259,791 Simmons Mar. 19, 19181,589,786 Bradshaw June 22, 1926 1,982,062 Mathews Nov. 27, 1934

